Gate for dumping bodies



April 22 1924. 1,491,545

J. E. REID ET AL.

GATE FOR DUMPING Bofims Filed Sept. 15. 1923 IIVl/ENTOBS,

Lfiarlesli. 11/9172.

v I I 0! k Patented Apr. 22, 1924.

UNETE sra're resists res.

JOSIAH n. REID AND cnanrns 1.. new, or new "roan, n. 2., assrcnoas re manamrrronanmoron oomrnny, or NEW YORK, n.1, a conroaarron vor DELAWARE.

GATE FOR DUMPTI IG BODIES.

Application filed September 15,1923, Serial Non 662,962;

To all whom it may concern:

Be it known that we, Josmn: E. REID and CHARLES L. NEIN, citizens of the United States, and residents, respectively, of the borough of Manhattan and of the borough of Queens of the city of New York, in the State of New York, pray that Letters Patent of the United States may be granted to us for new and useful Improvements in Gates for Dumping Bodies, of which the following is a specification, reference being had to the accompanying drawings, forming a part hereof.

This invention relates to gates for dumpl6 ing bodies and particularly the locking mechanism therefor and is designed primarily with reference to its use as a partition for such a body as distinguished from a tail gate although as the description proceeds it will be evident that the partition might be so employed. The principal object of the invention is to provide a construction which is characterized by fewness of parts, simplicity of construction and arrangement, ease in assembling and disassembling, and certainty of operation through the positive nature of the latching elements. Still another object of theinvention is to provide latching devices for such a gate which may be readily operated by hand and normally free from the action of unbalanced forces, particularly at the instant of release, such as in known constructions make the release of the gates under pressure a somewhat ditficult and hazardous operation. Still afurther object of the invention is to provide such a. latch as will be automatically engageable with the gate when the body is lowered to position on thechassis. A; further object of the invention is to construct the parts so that they shall be operable positively. under all conditions and free from springs. 7

These and other obiects of the invention will be described withgreater particularity hereinafter in connection with the embodiment illustrated in the accompanying drawings, wherein:

Figure l is a. view in rear elevation of a gate constructed and mounted in accordance with the present invention and having associated therewith the improved locking means.

Figure 2 is a view of a fragment of the gate shown in Figure 1 but shown on a somewhat larger scale.

Figur 3 is a view in side elevation thereof and showing particularly the locking relation' between the swinging gravity latch and the gate.

As pointed out hereinbefore, the improve:

ments are not limited to the particular location or function of the gate provided since it is evident that it might be so placed on a body as to serve as a tail gate although the disclosure herein is that of a gate designed for use as a partition in a dumping body in which it is believed it will find its greatest usefulness. The gate a itself may be of any suitable construction re-enforced as may be necessary to withstand pressure imposed.

thereon by the material at one sidecr the other. It carries at its upper edge or opposite sides laterally extending trunnions a, a which may be inserted removably within brackets b secured'to the vehicle body, a part of which isindicated at c,"at opposite sides thereof and slotted as at b to permit the free introduction and removal of the pin when the gateis attached or detached all in" orremoved therefrom as required. However, the most important feature of the invention resides in the means for locking the gate in position against movement and for unlocking it readily when the contents of the body are to be discharged. At one side of the body 0 as indicated clearly'in Figure 2 there is mounted pivotally on a pin (5 a swinging lock bar 6 which is bent to throw its lower ende at one side of the center of the pin (Z when the bar is in normal position for apurpose which will appear more clearly hereinafter. The lower end e of the bar may constitute a handle and beweighted to increase the gravity action described while facilitating manual swinging of the bar about the pin d against the action of gravity when the latch is to be tripped. The upper edge of the bar is formed with a beveled surface 6 while in roximity thereto and along one side edge 1s formed an open slot 6 for engagement with a locking pin 7 secured to the gate a and offset with respect to the trunnion a but preferably in siibstantially the same horizontal plane therewith. From the construction described will be clear,.especially with reference to Figure 3, that when thedumping body is in normal position on the chassis the gate a hangs in a substantially vertical position on the trunnions a, a and is held against swinging movement positively by engagement of the lock bar 6 with the locking pin A positive engagement of the pin f by the uppenend of the lock bar is maintained automatically by the 7 action of gravity on the lower end of the lock bar, which is preferably augmentediby provision of the weight a. This condition is maintained automatically; even when the body is tilted for dumping and the material is held against discharge by the face of the gate a until the latch bar is swung about the pivot (Z to release the pin f from the slot 6 Such a manual operation must be effected against the action of gravity on the lock bar 6. However, by disposing the pin 7 in a plane with the trunnions a, a which is substantially at right angles to the plane of the gate a, it will be'evident that the forces impressed on the locking bar by the pin 7' are in a plane substantially parallel to the plane of the gate a, that is, in plane and free from springs. Changes in matters of design and arrangement of parts may be made without departing from the spirit of the invention so long as the principle de SCYIbGdeIS pract ced by means equlvalent to,

those recited in the appended claims.

lVhat we claim is:

1. In a dumping body a transverse gate therefor, trunnions mountedon the gate and extending laterally therefrom, means carried on the body for supporting the trunnions with capacity for oscillation, a locliing pin mounted on the gate in spaced relationship to said trunnions and in -a plane therewith at substantially right angles to the plane of theigate and a locking barcooperating with said locking pin to restrain the gate.

2. In a dumping bodyza transverse gate therefor, trunnions mounted on the gate and extending laterally therefrom, means carried on the body for supporting the trunnions with'capacity for oscillation, a locking pin mounted on the gate in spaced relationship to said trunnions and in a plane therewith at substantially right angles to the plane of the gate, a locking bar co-operating with said locking pin to restrain the gate, and

substantially at right angles to the edge of the slot 6 so that when the locking bar is swung out of engagement with the pin f the latter is free to swing about the trunnions 0., (4 without impressing on the locking bar any unbalanced forces which might serve to snap it quickly around its supporting pin (Z or otherwise make it diflicult or hazardous for the final disengagement to be brought about. After the material has forced its way past the swinging gate a during the dumping operation the body will be lowered to the chassis for;subsequent refilling. As the body is lowered the gate 0, under the einfiuence of gravity. swings towards asubstantially vertical position about the trunnions a, a This movement will eventually bring the pin 7 down onto the beveled nese c atthe upper end of the locking bar and the bar itself will be swung about its pivot (Z against the action of gravity impressed on the lower end thereof until the pin f is r in alignment with the slot a when the bar will snap into locking engagement with the gravity means carried with said locking bar to maintain it normally in looking engagement with said pin. 7 V

3. In a dumping body a transverse gate therefor, trunnions mounted on the gate and extendin laterally therefrom, means carried on the body for supporting the trunnions with capacity for oscillation, a locking pin mounted on the gate in spaced relationship to said trunnions and in a plane therewith at substantially right angles to the plane of the gate, a locking bar co-operating with said locking pin to restrain the gate, and gravity means carried with said'locking bar to maintain it normally in locking engagement witlr said pin, said locking bar having its upper edge beveled to facilitate automatic engagementof the bar with the locking pin when the gate swings into its substantially verticalposition after dumping.

his specification signed this 12 day of September A. D. 1923.

'7 JOSIAH E. REID.

CHARLES L NEINJ 

